From e832b30f31c56614afe689035af4e04a29e77896 Mon Sep 17 00:00:00 2001
From: Charlie Stanton <charlie@shtanton.xyz>
Date: Fri, 21 Jul 2023 19:53:14 +0100
Subject: Adds an incredibly simple equality operator

---
 subex/parse.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'subex/parse.go')

diff --git a/subex/parse.go b/subex/parse.go
index 2392b22..35baaa2 100644
--- a/subex/parse.go
+++ b/subex/parse.go
@@ -260,7 +260,7 @@ func parseSubex(l RuneReader, minPower int, runic bool) SubexAST {
 		// case '[':
 		// 	rangeParts := parseRangeSubex(l)
 		// 	lhs = SubexASTRange {rangeParts}
-		case ')', ']', '"', '|', ';', '{', '+', '-', '*', '/', '!', '$':
+		case ')', ']', '"', '|', ';', '{', '+', '-', '*', '/', '!', '=', '$':
 			l.Rewind()
 			return SubexASTEmpty{}
 		// case '=':
@@ -366,6 +366,8 @@ func parseSubex(l RuneReader, minPower int, runic bool) SubexAST {
 				lhs = SubexASTReciprocal {lhs}
 			case r == '!' && minPower <= 4:
 				lhs = SubexASTNot {lhs}
+			case r == '=' && minPower <= 4:
+				lhs = SubexASTEqual {lhs}
 			case r == '$' && minPower <= 4:
 				slot := l.Next()
 				if slot == eof {
-- 
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